Company lists · Data refreshed September 2026

Top 12 Renewable energy hospitality providers based in Austria

Name: Renewable energy hospitality providers based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 33 companies tracked

RevenueBase identified 33 renewable energy hospitality providers headquartered in Austria as of September 2026 and tracks 264 professional contacts across them, including 123 with verified work emails. Wien is the largest hub.

This list covers renewable energy hospitality providers headquartered in Austria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

33Companies

264Contacts tracked

123Verified emails

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The 12 largest renewable energy hospitality providers based in Austria

Ranked by team size

Top 12 of 33 renewable energy hospitality providers based in Austria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy hospitality providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Oekostrom AG	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	63 contacts →
	Partial evidence “Die oekostrom AG ist Produzent und Anbieter von Strom aus erneuerbaren Energiequellen und setzt sich aktiv für eine ökologische, zukunftsfähige Energieversorgung bei Wärme und…” Source: RevenueBase Database · checked Sep 17, 2026
2	Energy3000 Solar Gmbh	Partial evidence	Müllendorf, AustriaHQ checked Sep 17, 2026	51-200	44 contacts →
	Partial evidence “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: RevenueBase Database · checked Sep 17, 2026
3	Heizma	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	39 contacts →
	Strong evidence “We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Source: RevenueBase Database · checked Sep 17, 2026
4	Voltares	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Strong evidence “Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Source: RevenueBase Database · checked Sep 17, 2026
5	Energy Solutions Gmbh	Strong evidence	Engerwitzdorf, AustriaHQ checked Sep 17, 2026	1-10	6 contacts →
	Strong evidence “Energy+- your partner for renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
6	Erneuerbare Energie Österreich	Indirect evidence	Wien, AustriaHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Die Klimakrise bedroht unsere Zukunft.” Source: RevenueBase Database · checked Sep 17, 2026
7	Greesma Energy Services Gmbh	Partial evidence	Sankt Margarethen An Der Raab, AustriaHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Source: RevenueBase Database · checked Sep 17, 2026
8	M-Tec Energie.Innovativ Gmbh	Partial evidence	Arnreit, AustriaHQ checked Sep 17, 2026	51-200	3 contacts →
	Partial evidence “M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.” Source: RevenueBase Database · checked Sep 17, 2026
9	Nu50 Energy	Partial evidence	Linz, AustriaHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…” Source: RevenueBase Database · checked Sep 17, 2026
10	Planttech Gmbh	Strong evidence	Asten, AustriaHQ checked Sep 17, 2026	51-200	2 contacts →
	Strong evidence “Our Story - Lighting the Path to a Greener World PlantTech was founded in 2010 by a group of passionate industry leaders who saw the potential of renewable energy to revolutionize…” Source: RevenueBase Database · checked Sep 17, 2026
11	Efit Energie Gmbh	Indirect evidence	Waldkirchen Am Wesen, AustriaHQ checked Sep 17, 2026	51-200	1 contacts →
	Indirect evidence “Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.” Source: RevenueBase Database · checked Sep 17, 2026
12	Drauland Solar	Partial evidence	Griffen, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “Wir sind im Bereich der erneuerbaren Energien tätig und bieten Ihnen hochwertige Photovoltaikanlagen für Privat- und Geschäftskunden.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy hospitality providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy hospitality providers.
Partial evidence: Its own public description names part of renewable energy hospitality providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy hospitality providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 12 of 33 renewable energy hospitality providers based in Austria

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Renewable energy hospitality providers based in Austria at a glance

As of Sep 17, 2026

46.6%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

15.2%Largest-city concentration · Wien

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 33 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among renewable energy hospitality providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Austria whose own description of what they do matches “renewable energy hospitality providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names renewable energy hospitality providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among renewable energy hospitality providers, and records with no verified work email. Companies headquartered outside Austria are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 123 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names renewable energy hospitality providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many renewable energy hospitality providers are there based in Austria?

RevenueBase identified 33 renewable energy hospitality providers headquartered in Austria as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Oekostrom AG, headquartered in Wien, tops this list with the largest team on record.

Which city has the most renewable energy hospitality providers?

Wien leads with 5 headquartered companies, followed by Linz (3) and Vienna (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 123 verified decision-maker contacts tracked across these 33 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.